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    When my wife and I went to live in an Arab country, my friends told us to be prepared for a culture shock. Later, we realized that the advice given to us by our friends was correct.

    The culture shock started with the weather. Here, the burning sun can cook an egg in a minute! The hot weather made us feel so tired that we were falling asleep at mid-day!

    Another culture shock was the working week. We worked from Saturdays to Wednesdays, including Sundays. It was also strange to see people praying in a certain direction! They have strict rules for women. They do not let people see their faces in public. They do not let women drive cars, either. All dresses worn by women have to cover the body completely. They believe that women cannot be seen in public.

    At the weekends, we went camping in the desert. I will never forget watching the sun setting over the desert. We also enjoyed riding on the camels. In the end, we enjoyed living there, but their culture is very different from the American culture.

    In ancient Greece, Socrates was a knowledgeable philosopher(哲学家). One day one person met him and said, "Do you know what I just heard about your friend?". "Hold on a minute," Socrates replied. "Before telling me anything I'd like you to pass a little test. It's called the Triple Filter Test(三重过滤测试). Before you talk to me about my friend, it might be a good idea to take a moment and filter what you're going to say. That's why I call it the Triple Filter Test. The first filter is truth. Have you made absolutely(完全地) sure that what you are about to tell me is true? ""No," the man said, "actually I just heard about it and…". "All right," said Socrates. "So you don't know whether it's true or not. Now let's try the second filter, the filter of Goodness. Is what you are about to tell me about my friend something good?" "No, on the contrary…". "So, "Socrates continued, "you want to tell me something bad about him, but you're not certain it's true. You may still pass the test though, because there's one filter left: the filter of Usefulness(有益性). Is what you want to tell me about my friend going to be useful to me?" "No, not really." "Well," said Socrates, "if what you want to tell me is neither true nor good nor even useful, why tell it to me?"

    Zhang Hai is my friend. He is from Shanghai. He likes1.He is in their school rock band. He often2the guitar on Sundays. He plays it very well. You can see lots of3in his bedroom. In them you can see all kinds of guitars. Now their school rock band4two good musicians. Can you play the piano, the drums or the violin? Then you can join their band. You can also write to him. His5is zhangHai2008@126.com.

Mrs. Morris lives on the top floor of our building. Every afternoon，she sits in a chair near the door of1 building. She always wears a smile and listens to me when I tell her about my days at school. 

One Tuesday，I ran into the building and hoped 2 my day with her，but her usual chair was empty. 

I looked for Mr. Low and asked what3 to Mrs Morris. "Oh，dear. Mrs. Morris is not feeling well 4 she is staying in bed today. "Mr. Low said. I wondered what I could do to make Mrs. Morris feel better. 

When Mom heard the news，she suggested making cookies 5 Mrs. Morris. We took out flour，sugar and butter. Maybe they 6 really make her better. 

When the cookies 7 ，we decided to visit Mrs. Morris without telling her. Mrs. Morris opened the door，looking surprised but 8 to see us. "Mrs. Morris，we bring 9 some healthy cookies，"I said. "We hope you feel better soon. "

"10 thoughtful gift!I feel better already!"Mrs. Morris smiled and said. 

Whether you like it or not, artificial intelligence（AI）is here to stay. It bas already been used in many different fields. And now one of them is to help find the missing children. In Hubei Province, a group of 30 students at Huazhong University of Science and Technology （HUST）arc working on a special project. They have developed an AI system that restores（修复）old photos. The clearer photos allow them to better look for missing people. 

The project was set up by Sheng Jianzhong in 2020. At the time, be was a student at HUST School. One day, be came across a missing child notice. The photos on the notice were difficult to make out. "These photos may be of no practical use even if the child is around," he said. As a result, Sheng decided to use his skills to help the missing children. And to his surprise, many of his schoolmates volunteered to join him. 

Over the past three years, the team tried to develop an AI system for restoring the photos. The team has restored more than 1, 000 photos. With the help of AI system, 11 missing children were successfully found. One success story is that of Sun Haiyang. Thanks to the AI program, in December 2021, the father, Sun Haiyang found his son after 14 years of search. 

In the future, Sheng plans to build a more excellent team to run the project. The goal is not just to further improve the technology. More importantly, he hopes to see more young people work for good causes.